Intermediate 21 days
21-Day Fat Loss Kickstart
A 3-week metabolic reset combining HIIT, strength circuits, and active recovery to torch body fat and reveal lean muscle.
21-Day Schedule
1
HIIT Circuit
25 min
5 rounds: 20s work / 10s rest
2
Strength Circuit (Upper)
30 min
3
Active Recovery Walk
30 min
4
HIIT Circuit
25 min
5
Strength Circuit (Lower)
30 min
6
Cardio Steady State
35 min
7
Rest Day
Light stretching only
8
HIIT Circuit
30 min
6 rounds
9
Strength Circuit (Full Body)
35 min
10
Active Recovery Walk
40 min
11
HIIT Circuit
30 min
12
Strength Circuit (Upper)
35 min
13
Cardio Steady State
40 min
14
Rest Day
Take progress photos today
15
HIIT Circuit
35 min
7 rounds
16
Strength Circuit (Lower)
35 min
17
Active Recovery Walk
45 min
18
HIIT Circuit
35 min
19
Strength Circuit (Full Body)
40 min
20
Cardio Steady State
45 min
21
Final Challenge
40 min
Max-effort finish — celebrate!
Challenge Rules
- 1Complete workouts at the intensity described — don't go below 70% effort.
- 2Follow the nutrition plan: caloric deficit of 300–500 calories per day.
- 3Drink at least 3 liters of water daily.
- 4No alcohol for the full 21 days.
- 5Active recovery days involve walking — don't skip them.